Home >> Science & Nature >> Science

How to Corrode Steel

In many areas of the country, the preferred finish of interior steel decor is one of a rusted finish. If you are working on an art project and are looking to intentionally rust steel for a rustic finish, you could leave it to the elements as any steel will rust when exposed to moisture of a period of time. For reasons of efficiency, consider intentionally finishing your item where it will rust effectively in a controlled environment.

Things You'll Need

Gloves
Safety goggles
Metal etching solution
Vinegar
Large tub
Salt
Spray bottle

Instructions

- 1
  Put on your gloves and your safety goggles. Pour the metal etching solution into a corrosion-proof container to cover the entire piece metal you wish to rust for two hours. You can obtain metal etching solution at any home supply store.
- 2
  Take the metal out and rinse soaking it in a solution of water and vinegar consisting of 1 cup vinegar for every 2 gallons. You will need to make enough solution to soak the entire piece of metal.
- 3
  Rinse off the metal and then place in a hot salt water solution overnight. Use 1 cup of salt for every 2 gallons of water, heated to at least 125 degrees Fahrenheit. Remove and allow to dry. Rust should form over the surface quickly.
- 4
  Spray the item with water occasionally until you get the desired rust effect.

Science